Reservoirs in Heba area are characterized by large burial depth

strong diagenesis

extreme heterogeneity

and complicated gas accumulation conditions.Based on stratigraphic division and correlation

study of sedimentary facies

analysis of basic features of reservoirs

logging interpretation

and reservoir prediction and quantitative evaluation in Heba area

depositional patterns of these reservoirs are established

the types of reservoir space are defined

the spatical distribution of the reservoirs are predicted

and the favorable areas for development of quality reservoirs are evaluated.A set of methods that are suitable for prediction and comprehensive evaluation of the reservoirs in Heba area is presented.